Mitsubishi Electric MELSEC-L LD75P User Manual page 541

• If an error is detected during continuous path control, the axis stops immediately on completion of execution
of the positioning data located right before the positioning data in error.
Example
If the positioning address of positioning data No. 13 is outside the software stroke limit range,
the operation immediately stops after positioning data No. 12 has been executed.
Md. 26
Axis operation status
• During simultaneous start, a stroke limit check is carried out for the current values of every axis to be started.
Every axis will not start if an error occurs, even if it only occurs in one axis.
(5) Setting method
To use the "software stroke limit function", set the required values in the parameters shown in the following table,
and write them to the LD75.
The set data is made valid on the rising edge (OFF to ON) of the PLC READY signal [Y0].
Setting item
Software stroke limit upper
[Pr.12]
limit value
Software stroke limit lower
[Pr.13]
limit value
Software stroke limit
[Pr.14]
selection
Software stroke limit
[Pr.15]
valid/invalid setting
Refer to  Page 118, Section 5.2 for the information on detail settings.
No.10 No.11 No.12
Position control
Setting
value

Set the upper limit value of the moveable range.

Set the lower limit value of the moveable range.
Set whether to use the "[Md.20] Current feed value" or "[Md.21]

Machine feed value" as the "current value".
Set whether the software stroke limit is validated or invalidated
0: Valid during manual control (JOG operation, Inching operation, manual
pulse generator operation).
CHAPTER 12 CONTROL SUB FUNCTIONS
Positioning data
Immediate stop at
error detection
No.10
P11
No.11
P11
No.13
No.12
P11
No.13
P11
Error
No.14
P01
Setting details
12
Factory-set initial value
2147483647
-2147483648
0: Current feed value
0: Valid
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